15 research outputs found
Post-buckled equilibrium state of axially compressed polymeric rod in glass and rubbery transitions
The Influence of Protonation on the Electroreduction of Bi (III) Ions in Chlorates (VII) Solutions of Different Water Activity
Assessment of fetal anatomy at 12 to 13 weeks of gestation by transabdominal and transvaginal sonography
On C-infinity well-posedness of hyperbolic systems with multiplicities
In this paper we study first order hyperbolic systems of any order with multiple characteristics (weakly hyperbolic) and time-dependent analytic co- efficients. The main question is when the Cauchy problem for such systems is well-posed in C ∞ and in D 0 . We prove that the analyticity of the coefficients com- bined with suitable hypotheses on the eigenvalues guarantee the C ∞ well-posedness of the corresponding Cauchy problem